import java.util.Scanner;

public class Learn7 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        for(int i = 1;i <= n;i++){
            for (int j = 1; j <= n; j++) {
                if(j == i||j + i - 1 == n){
                    System.out.print('*');
                }else {
                    System.out.print(' ');
                }
            }
            System.out.printf("\n");
        }
    }
}
